Home / 42,014.89-63,004.51-12,424.78

Finding the Fourth Proportional to 42,014.89, 63,004.51 and 12,424.78

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Solution

The fourth proportional to 42,014.89, 63,004.51 and 12,424.78 is: 18,631.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,014.89 : 63,004.51 = 12,424.78 : x
  2. Step 2: Convert to fraction form
    42,014.89/63,004.51 = 12,424.78/x
  3. Step 3: Cross multiply
    42,014.89x = 63,004.51 × 12,424.78
  4. Step 4: Simplify right side
    42,014.89x = 782,817,175.76
  5. Step 5: Solve for x
    x = 782,817,175.76/42,014.89
  6. Step 6: Final answer
    x = 18,631.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.